Miner&#39;s lamp.



No. 869,049, PATENTED OCT. 22. 1907.

.P. BIRCH; MI'NERS' LAMP.

APPLIOATION FILED APR.18;1907.-

' l/WENTOR 7%!4 Zia h Allomeys PHILLIP BIRCH, OF PITTSBURG, PENNSYLVANIA.

MINER S LAMP.

Specification of Letters Patent.-

Patented Oct. 22, 1907.

Application filed April 18, 1907. Serial 368,944.

To all whom it may concern:

Be it known that I, PHILLIP BIRCH, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Miners Lamps, of which the following isa specification, reference being had therein to the accompanying drawing.

This invention relates to miners lamps, and the invention has for its object to provide a novel lamp adapted to partially embrace a miners cap and equalize the weight of the lamp upon the cap.

Another object of this invention is to provide a crescent-shaped min ers lamp and positive and reliable means to detachably connect the same to a cap.

A further object of this invention is to provide a double lamp having a ventilating wick spout and a detachable shield for reflecting the flame of the wick.

A still further object of this invention is to provide a self-righting lamp that will normally remain in an upright position.

A still further object of this invention is to provide a lamp with protecting edges and with a novel ventilat ing closure.

With the above and other objects in view, which will more readily appear as the invention is better understood, the same consists in the novel construction, combination and arrangement of parts to be hereinafter more fully described and then specifically pointed out in the appended claims.

Referring to the drawing forming part of this specification, like numerals of reference designate corresponding parts throughout the several views, in which:

Figure l is a front elevation of my improved lamp, Fig. 2 is a plan of the same, Fig. 3 is a vertical sectional view of the lamp partly in elevation. Fig. 4 is a perspective view of one of the hooks or clasps for holding my improved lamp.

To put my invention into practice, 1 construct my improved lamp of a crescent shaped receptacle 1 adapted to conform to the front edge of a cap above the vizor thereof. The receptacle 1 has its diametrically opposed ends 2 flattened to provide lobes 3 which are perforated, as at 4, to receive hooks 4 carried by the sides of a cap (not shown).

The crescent shaped receptacle 1 intermediate its ends is enlarged, as at 5, to form a bulb-like wick chamber 6, said chamber being separated from the remainder of the receptacle 1 by partitions 7, said partitions forming oil compartments in the ends of the receptacle 1. In order that oil may flow into the wick chamber, the lower edges of the partitions are cut away as at 8, and to permit of oil being placed in the wick and oil chambers, the top of the lamp is provided with a detachable closure having an opening 10 formed therein and a convex bottom 11 which is also provided with an opening 12, these openings providing vents for the gas which may generate in the chamber 6.

The front of the lamp is provided with an upwardly extending spout 14 having an inner tube 15, to accommodate a wick 16. The spout 14 is provided with a plurality of openings or perforations 17 to allow air to enter the wick chamber 6. Upon the spout 14 is adapted to fit a band or ring 18 carrying a reflector or shield 19, said reflector being provided with a central draft opening 20 whereby a draft of air striking the reflector will not extinguish the lamp. The band 1 Sis connected to the spout 14 by a pin 21, the latter engaging the band 18 through the medium of the bayonet-shaped slot 22, employed for locking the band upon the spout.

The upper and lower edges of the receptacle 1 are projected, as at 23 to prevent the receptacle 1 from being injured when the same is brought into contact with a hard surface. It is customary among the miners to strike the lamp upon a hard surface to move the wick 16, and the projecting edges of the lamp are adapted to prevent the receptacle thereof from being indented or injured when so handled.

In providing the ventilating spout 14 with a closed upper end, I prevent the soot and consumed material of the wick from entering the spout and settling in the wick chamber 6.

In thoroughly ventilating the spout 14 and the wick chamber, I prevent gas from accumulating from the illuminating oil, thus eliminating all danger of the lamp exploding.

The novel shape of the lamp normally maintains the same in an upright position when detached from a cap, therefore preventing the illuminating oil within the lamp from being separated by the lamp being acci dentally tilted.

My improved lamp is constructed of strong and durable metal, and can be made of various sizes to fit the crowns of miners caps.

What I claim and desire to secure by Letters Patent, is I 1. In a miner's lamp, a substantially crescent-shaped receptacle, the tapered free ends of which are provided with apertured lobes, dividing partitions arranged in said receptacle to form compartments therein and cut away to establish communication between the compartments, the central compartment having a filling aperture, and a wick spout carried by the receptacle and communicating with said central compartment.

2. In a miner's lamp, a substantially-crescent-shaped receptacle provided at its tapering end with means to secure the same to a cap, transversely-extending partitions within the receptacle dividing the same into a plurality of compartments, the said partitions being cut away to establish communication between the different compartmerits, one of said compartments having a filling opening, a closure plug therefor provided with a vent opening, and a wick spout carried by the receptacle and communicating with the central compartment of the receptacle.

3. In a miners lamp, an oil receptacle substantially crescent-shaped in form havingthe tapered free ends flattened and provided with apertures, a partitionwithin the receptacle dividing the same into compartments in communication one with the other through an opening in the partition, and a wick spout carried by the receptacle 10 in open communication with one of said compartments.

In testimony whereof I afiix my signature in the presence of two witnesses.

PHILLIP BIRCH.

Witnesses MAX II. Snoriovmz, C. V. BROOKS. 

